On Fri, 2010-12-03 at 14:13 -0800, Bill Kendrick wrote:
> So I'm grepping & cut'ing a huge log file (6.4 million lines)
> and made the mistake of deciding to pipe it through "tee" to
> watch for a while. I forgot to do this from within a "screen"
> session, so I'm kind of stuck staring at it in a terminal. *sigh* :)
>
> I don't want to watch any more, and wish I could do something like,
> I dunno maybe like this...?
>
>
> $ cat hugefile.log | grep whatever | cut -f 1,2,3 | tee output.txt
> {huge dump of data}
> ^Z
> [1]+ Stopped cat hugefile.log | grep whatever | cut -f 1,2,3 | tee output.txt
> $ kill -SIGUSR1 %1
>
> And then resume:
>
> $ fg
> {wonderful silence}
>
>
> or background:
>
> $ bg
> [1]+ cat hugefile.log | grep whatever | cut -f 1,2,3 | tee output.txt &
> $
>
>
> In other words, a way to tell tee to "shut up" and stop dumping to stdout
> any more (but keep copying from stdin to the file specified).
>
>
> I wonder, is there any other Linux'y trick I can use in the meantime?
> (Maybe fiddling in /proc ? ;) )
Once upon a time, I hacked tee to do this, but I can't find my source
code anymore. I think it even responded to SIGUSR1.
However, I still have the binary in my git history. It's attached.
--Ken